can it work with raspberry pi 3?
JaneYu 2017-12-08 02:08:37 9 Views10 Replies can it work with raspberry pi 3?
This sensor is useless randomly sets output pin to high even if no motion
once detect motion is detected forever even if no motion
JaneYu This motion sensor is quite sensitive and it is recommended that you use it in a light-tight box.
Seams to me like this sensor is not able to detect no-motion correctly when powerd with 3.3V.
Maybe some noise is makeing it toggle? Can somebody confirm my tests?
JaneYu After the sensor is triggered, there will be an extended period of time of the trigger, even if no-motion.
Turn the yellow knob on the back of the sensor clockwise to adjust the sensitivity of the sensor.
JaneYu Please adjust the sensitivity of sensor, position is orange knob, rotate clockwise and test.
JaneYu Why does my sensor set signal low even when there is no motion? I put it inside a cardboard box and it keeps going low somehow.
JaneYu I would like to use two of them in which output of both of them are connected to one node. Do I have to use diodes in their output to protect them or is it safe without diode? My concern is that if the first one has high output, and the second one high low output, then there would be reverse voltage on second one, since both their outputs are connected to one node. Then, is their output protected on its board, or do I have to use diodes to protect it?
JaneYu 
